Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

how do i 'embed' a legacy cpu inside Altera chips???

Hi All, I did some searching and couldnt find anything related, So.... I'd like to know how i go about embedding and old 6809 cpu inside an Altera chip, i *think* the cyclone range supports t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

From what I remember of the 6809, getting cycle accuracy shouldn't be a problem.

Largely it did a memory cycle every clock - but there might be an idle cycle after the instruction fetch.

Given that the 6809's clock was probably ~1Mhz you could probably get a 100Mhz nios to emulate it!

Although writing a 6809 cpu might be an interesting hobby exercise.